AHERA defines a school building as:
a) Any structure suitable for use as a classroom (e.g., laboratory, library, cafeteria)
b) A gymnasium or any facility designed for athletic or recreational activity for physical education
c) Any other facility used for:
the instruction or housing of students
the administration of educational or research programs
d) Any maintenance, storage, or utility facility (including any hallway) essential to the operation of facilities described in a), b), or c)
e) Any portico or covered exterior hallway or walkway
f) Any exterior portion of a mechanical system used to condition interior space